User Manual

132
User Manual
During the discovery phase the TFLN general alarm (LED
┌┘) blinks while the
other LEDs go on showing previously detected status. Time dedicated to
discovery phase can be at maximum 4min and depends on system
complexity.
Do not connect/disconnect any cable or any piece of equipment during the
discovery phase. This may result in failing the identification of remote units.
Please note that, while the discovery phase is running, the whole system is
working correctly as discovery operations aim only to collect information
about remote units without affecting the system functionalities.
Note
: in case discovery doesn’t start automatically, check through the LMT or
the remote supervision whether it has been disabled (refer to LMT or remote
supervision system manuals for further information).
Once the discovery is finished, the TFLN general alarm (LED ┌┘) stops
blinking and switches OFF. The power supply LED (green LED) remains on
while LEDs 1,2,3,4 show either the status of the remote units or the quality of
the UL connections. In case some of these LEDs remain on, check if they refer
to unused optical ports or not. In this case use LMT software to mask it
otherwise if they refer to connected remote units and remain on, please refer
to troubleshooting procedure.
Removing a TFLN module
Switch off the Master Unit power supply, remove the SC-APC optical
connectors, and insert the protection caps into TFLN optical ports. Then
• unscrew the 4 screws and slowly remove the card.
• put the removed TFLN card in its safety box.
• switch on again the Master Unit power supply, and refer to Start Up
section.
Label LED colour Status
= Green ON
(power supply is on)
┌┘
Red OFF
(no major failure affects TFLN operations)
1 Red OFF
(no major failure affects corresponding remote unit or UL
connection)
2 Red OFF
(no major failure affects corresponding remote unit or UL
connection)
3 Red OFF
(no major failure affects corresponding remote unit or UL
connection)
4 Red OFF
(no major failure affects corresponding remote unit or UL
connection)
TFLN
Table 5.5: Status of the TFLN LEDs in full-working conditions